reintroduce microsoft login. upgrade a bunch of stuff.

Shogi.UI/Pages/Home/GameBoard/GameBoard.razor

@@ -0,0 +1,45 @@
+@using Shogi.Contracts.Api
+@using Shogi.Contracts.Types;
+@using System.Text.RegularExpressions;
+@inject IShogiApi ShogiApi
+@inject AccountState Account;
+@inject PromotePrompt PromotePrompt;
+
+@if (session == null)
+{
+    <EmptyGameBoard />
+}
+else if (isSpectating)
+{
+    <SpectatorGameBoard Session="session" />
+}
+else
+{
+    <SeatedGameBoard Perspective="perspective" Session="session" />
+}
+
+
+@code {
+    [Parameter]
+    public string? SessionName { get; set; }
+
+    Session? session;
+    private WhichPlayer perspective;
+    private bool isSpectating;
+
+    protected override async Task OnParametersSetAsync()
+    {
+        if (!string.IsNullOrWhiteSpace(SessionName))
+        {
+            this.session = await ShogiApi.GetSession(SessionName);
+            if (this.session != null)
+            {
+                var accountId = Account.User?.Id;
+
+                this.perspective = accountId == session.Player2 ? WhichPlayer.Player2 : WhichPlayer.Player1;
+                this.isSpectating = !(accountId == this.session.Player1 || accountId == this.session.Player2);
+                Console.WriteLine($"IsSpectating - {isSpectating}. AccountId - {accountId}. Player1 - {this.session.Player1}. Player2 - {this.session.Player2}");
+            }
+        }
+    }
+}